Volume 18, Issue 2 (4-2018)
Modares Mechanical Engineering 2018, 18(2): 243-252 |
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poormoradi A. Dynamic Response of the aircraft to wind shear using multibody loading approach . Modares Mechanical Engineering 2018; 18 (2) :243-252
URL: http://mme.modares.ac.ir/article-15-205-en.html
URL: http://mme.modares.ac.ir/article-15-205-en.html
1- Aerospace engineering Dept./ Amirkabir University
Abstract: (5605 Views)
* P.O.B.1591634311, 424 Hafez Ave., Tehran, Iran, sabzeh@aut.ac.ir
Abstract
Microburst wind shear is very dangerous and threatening for aircraft in low altitude flight, which makes aircraft uncontrollable and also difficult in forecasting and detection. This is consequential research in order to make the aircraft controllable when encountering the phenomenon. Most studies have simulated aircraft encountering the microburst by applying single body model. This model, consider location of microburst on the aircraft center of gravity, where microburst must be applied all through fuselage, wing and tail combination. For more realistic simulation, microburst should be applied to more points of aircraft body in addition to C.G., which is known as developed multi-body model. Applying the influence of wind gradients to aircraft body is the advantage of this model. In this paper, results of both single and multi-body was conducted and compared. In comparison of single body model with existing methods in references, has provided a proper consistency with the tolerance of 10%. Considerable results have shown in comparison of single-body and multi-body model in accordance to flight trajectory response, heading angle and pitching moment to wind shear model and the ability of the multi-body model for modeling of aircraft realistic flight encountering microburst has been proved.
Abstract
Microburst wind shear is very dangerous and threatening for aircraft in low altitude flight, which makes aircraft uncontrollable and also difficult in forecasting and detection. This is consequential research in order to make the aircraft controllable when encountering the phenomenon. Most studies have simulated aircraft encountering the microburst by applying single body model. This model, consider location of microburst on the aircraft center of gravity, where microburst must be applied all through fuselage, wing and tail combination. For more realistic simulation, microburst should be applied to more points of aircraft body in addition to C.G., which is known as developed multi-body model. Applying the influence of wind gradients to aircraft body is the advantage of this model. In this paper, results of both single and multi-body was conducted and compared. In comparison of single body model with existing methods in references, has provided a proper consistency with the tolerance of 10%. Considerable results have shown in comparison of single-body and multi-body model in accordance to flight trajectory response, heading angle and pitching moment to wind shear model and the ability of the multi-body model for modeling of aircraft realistic flight encountering microburst has been proved.
Article Type: Research Article |
Subject:
Dynamics, Cinematics & Mechanisms
Received: 2017/10/2 | Accepted: 2017/12/31 | Published: 2018/02/1
Received: 2017/10/2 | Accepted: 2017/12/31 | Published: 2018/02/1
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